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<div class="subTitle">org.apache.commons.math3.fitting</div>
<h2 title="Class PolynomialCurveFitter" class="title">Class PolynomialCurveFitter</h2>
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<li><a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html" title="class in org.apache.commons.math3.fitting">org.apache.commons.math3.fitting.AbstractCurveFitter</a></li>
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<li>org.apache.commons.math3.fitting.PolynomialCurveFitter</li>
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<pre>public class <span class="strong">PolynomialCurveFitter</span>
extends <a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html" title="class in org.apache.commons.math3.fitting">AbstractCurveFitter</a></pre>
<div class="block">Fits points to a <a href="../../../../../org/apache/commons/math3/analysis/polynomials/PolynomialFunction.Parametric.html" title="class in org.apache.commons.math3.analysis.polynomials"><code>polynomial</code></a>
 function.
 <br/>
 The size of the <a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#withStartPoint(double[])"><code>initial guess</code></a> array defines the
 degree of the polynomial to be fitted.
 They must be sorted in increasing order of the polynomial's degree.
 The optimal values of the coefficients will be returned in the same order.</div>
<dl><dt><span class="strong">Since:</span></dt>
  <dd>3.3</dd></dl>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.commons.math3.fitting.<a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html" title="class in org.apache.commons.math3.fitting">AbstractCurveFitter</a></h3>
<code><a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.TheoreticalValuesFunction.html" title="class in org.apache.commons.math3.fitting">AbstractCurveFitter.TheoreticalValuesFunction</a></code></li>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html" title="class in org.apache.commons.math3.fitting">PolynomialCurveFitter</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#create(int)">create</a></strong>(int&nbsp;degree)</code>
<div class="block">Creates a default curve fitter.</div>
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<td class="colFirst"><code>protected <a href="../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#getProblem(java.util.Collection)">getProblem</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/commons/math3/fitting/WeightedObservedPoint.html" title="class in org.apache.commons.math3.fitting">WeightedObservedPoint</a>&gt;&nbsp;observations)</code>
<div class="block">Creates a least squares problem corresponding to the appropriate curve.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html" title="class in org.apache.commons.math3.fitting">PolynomialCurveFitter</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#withMaxIterations(int)">withMaxIterations</a></strong>(int&nbsp;newMaxIter)</code>
<div class="block">Configure the maximum number of iterations.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html" title="class in org.apache.commons.math3.fitting">PolynomialCurveFitter</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#withStartPoint(double[])">withStartPoint</a></strong>(double[]&nbsp;newStart)</code>
<div class="block">Configure the start point (initial guess).</div>
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<h3>Methods inherited from class&nbsp;org.apache.commons.math3.fitting.<a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html" title="class in org.apache.commons.math3.fitting">AbstractCurveFitter</a></h3>
<code><a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html#fit(java.util.Collection)">fit</a>, <a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html#getOptimizer()">getOptimizer</a></code></li>
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<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h4>create</h4>
<pre>public static&nbsp;<a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html" title="class in org.apache.commons.math3.fitting">PolynomialCurveFitter</a>&nbsp;create(int&nbsp;degree)</pre>
<div class="block">Creates a default curve fitter.
 Zero will be used as initial guess for the coefficients, and the maximum
 number of iterations of the optimization algorithm is set to
 <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true#MAX_VALUE" title="class or interface in java.lang"><code>Integer.MAX_VALUE</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>degree</code> - Degree of the polynomial to be fitted.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a curve fitter.</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#withStartPoint(double[])"><code>withStartPoint(double[])</code></a>, 
<a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html#withMaxIterations(int)"><code>withMaxIterations(int)</code></a></dd></dl>
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<h4>withStartPoint</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html" title="class in org.apache.commons.math3.fitting">PolynomialCurveFitter</a>&nbsp;withStartPoint(double[]&nbsp;newStart)</pre>
<div class="block">Configure the start point (initial guess).</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>newStart</code> - new start point (initial guess)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new instance.</dd></dl>
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<h4>withMaxIterations</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/commons/math3/fitting/PolynomialCurveFitter.html" title="class in org.apache.commons.math3.fitting">PolynomialCurveFitter</a>&nbsp;withMaxIterations(int&nbsp;newMaxIter)</pre>
<div class="block">Configure the maximum number of iterations.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>newMaxIter</code> - maximum number of iterations</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new instance.</dd></dl>
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<h4>getProblem</h4>
<pre>protected&nbsp;<a href="../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem</a>&nbsp;getProblem(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/commons/math3/fitting/WeightedObservedPoint.html" title="class in org.apache.commons.math3.fitting">WeightedObservedPoint</a>&gt;&nbsp;observations)</pre>
<div class="block">Creates a least squares problem corresponding to the appropriate curve.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html#getProblem(java.util.Collection)">getProblem</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/commons/math3/fitting/AbstractCurveFitter.html" title="class in org.apache.commons.math3.fitting">AbstractCurveFitter</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>observations</code> - Sample points.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the least squares problem to use for fitting the curve to the
 given <code>points</code>.</dd></dl>
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